Citazione Stile APA (7a Edizione)

Klemke & E. D. (1981). The Meaning of Life. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Klemke e E. D. The Meaning of Life. New York / Oxford: Oxford University Press, 1981.

Citatione MLA (9a ed.)

Klemke e E. D. The Meaning of Life. Oxford University Press, 1981.